The 1.5 release came online at github. The 1.5 branch is considered a ‘developers branch’. The internals of BIMserver have drastically changed. The 2.0 version which is upcoming will have changes in the API / ServiceInterface. Developers that use internal plugins in their tools should have a look at this 1.5 release. Developers that connect to BIMserver from a separate application should keep a close watch in the development in the codebase.